makelintstub revision 1.24 
1#!/bin/sh -
2# $NetBSD: makelintstub,v 1.24 2012/02/01 05:34:40 dholland Exp $
3#
4# Copyright (c) 1996, 1997 Christopher G. Demetriou
5# All rights reserved.
6# 
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15# 3. All advertising materials mentioning features or use of this software
16#    must display the following acknowledgement:
17#          This product includes software developed for the
18#          NetBSD Project.  See http://www.NetBSD.org/ for
19#          information about NetBSD.
20# 4. The name of the author may not be used to endorse or promote products
21#    derived from this software without specific prior written permission.
22# 
23# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33# 
34# <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
35
36usage()
37{
38
39cat << _EOF 1>&2
40Usage: $PROG [-n|-p] [-o filename] [-s syscall.h] object ...
41	-n		Create SYSCALL_NOERROR.
42	-p		Create PSEUDO_NOERROR.
43			(also removes leading "_" on syscall name).
44	-o filename	Output to filename.
45	-s syscall.h	Header to #include instead of <sys/syscall.h>.
46
47	The CPP environment variable must be set
48	to the path to the C preprocessor.
49_EOF
50	exit 1
51}
52
53header()
54{
55
56	cat <<- __EOF__
57	/*
58	 * THIS IS AN AUTOMATICALLY GENERATED FILE.  DO NOT EDIT.
59	 */
60
61	#include <sys/param.h>
62	#include <sys/aio.h>
63	#include <sys/time.h>
64	#include <sys/mount.h>
65	#include <sys/stat.h>
66	#include <ufs/ufs/dinode.h>
67	#include <ufs/lfs/lfs.h>
68	#include <sys/resource.h>
69	#include <sys/poll.h>
70	#include <sys/uio.h>
71	#include <sys/ipc.h>
72	#include <sys/lwpctl.h>
73	#include <sys/mqueue.h>
74	#include <sys/msg.h>
75	#include <sys/sem.h>
76	#include <sys/shm.h>
77	#include <sys/sched.h>
78	#include <sys/timex.h>
79	#include <sys/socket.h>
80	#include <sys/event.h>
81	#include <sys/uuid.h>
82	#include <sys/quotactl.h>
83	#ifdef __STDC__
84	#include <stdarg.h>
85	#else
86	#include <varargs.h>
87	#endif
88
89	__EOF__
90}
91
92syscall_stub()
93{
94
95	syscalldump="$1"
96	syscallname="$2"
97	funcname="$3"
98
99    	arglist="$(
100    	sed -e 'ta
101		:a
102		s,^/\* syscall: \"'"$syscallname"'\" ,,
103	        tb
104		d
105		:b
106		s, \*/$,,' $syscalldump
107	)"
108
109	eval set -f -- "$arglist"
110
111	if [ $# -lt 3 ]; then
112		echo syscall $syscallname not found! 1>&2
113		exit 1
114	fi
115
116	shift			# kill "ret:"
117	returntype=$1; shift
118	shift			# kill "args:"
119
120	cat <<- __EOF__
121	/*ARGSUSED*/
122	$returntype
123	__EOF__
124
125	# do ANSI C function header
126	echo	"#ifdef __STDC__"
127
128	echo "$funcname("
129	first=true; i=1
130	for arg; do
131		if $first; then
132			first=false
133		else
134			echo ", "
135		fi
136		case "$arg" in
137		"...") echo "...";;
138		*) echo "$arg arg$i"; i=$(($i + 1));;
139		esac
140	done
141	if $first; then
142		echo "void"
143	fi
144	echo	")"
145
146	# do K&R C function header
147	echo	"#else"
148
149	echo "$funcname("
150	first=true; i=1
151	for arg; do
152		if $first; then
153			first=false
154		else
155			echo ", "
156		fi
157		case "$arg" in
158		"...") echo "va_alist";;
159		*) echo "arg$i"; i=$(($i + 1));;
160		esac
161	done
162	echo	")"
163	i=1
164	for arg; do
165		case "$arg" in
166		"...") echo "	va_dcl";;
167		*) echo "	$arg arg$i;"; i=$(($i + 1));;
168		esac
169	done
170
171	# do function body
172	echo	"#endif"
173
174	echo	"{"
175	if [ "$returntype" != "void" ]; then
176		echo "        return (($returntype)0);"
177	fi
178	echo	"}"
179}
180
181trailer()
182{
183
184	cat <<- __EOF__
185	/* END */
186	__EOF__
187}
188
189
190pflag=false
191nflag=false
192oarg=""
193syscallhdr=/usr/include/sys/syscall.h
194syscalldump=/tmp/makelintstub.$$
195PROG="$(basename "$0")"
196
197if [ -z "${CPP}" ]; then
198	usage
199fi
200
201while getopts no:ps: i
202do
203	case "$i" in
204	n)	nflag=true;;
205	o)	oarg=$OPTARG;;
206	p)	pflag=true;;
207	s)	syscallhdr=$OPTARG;;
208	*)	usage;;
209	esac
210done
211
212shift $(expr $OPTIND - 1)
213
214if $pflag && $nflag
215then
216	echo "$PROG: -n flag and -p flag may not be used together" 1>&2
217	usage
218fi
219
220if [ -n "$oarg" ]; then
221	exec > $oarg
222fi
223
224trap "rm -f $syscalldump" 0 1 2 3 15
225
226header
227
228echo "#include \"$syscallhdr\"" | ${CPP} -D_LIBC -C > $syscalldump
229
230for syscall; do
231	fnname=${syscall%.S}
232	if $pflag; then
233		scname=${fnname#_}
234	else
235		scname=$fnname
236	fi
237	syscall_stub $syscalldump $scname $fnname
238	echo ""
239done
240
241trailer
242
243exit 0
244